"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: Since its invention, Kevlar has saved thousands of ...

Weight is often a key consideration for scientists pushing the boundaries of bullet-proof materials, imagining armor that keeps the wearer safe while also improving their mobility. Engineers at the ...

Sometimes nothing feels better on stiff, aching joints than a little heat. But many heating pads and wraps are rigid and provide uneven warmth, especially when the person is moving around. Researchers ...